Photos of it in the slab please. Since so far one one has been confirmed and it is in a NGC slab, I would expect PCGS would put out a press release to the numismatic press if they had slabbed a second one. We should also be able to confirm it on the PCGS website if you give the serial number.
They made 17 billion cents in 1982. One has been found to be 1982-D SMALL DATE copper (3.1 grams.) While there could be others out there the odds are against any one person finding it in their lifetime. First you have to separate your 1982's into small and large date. Plenty of photos to show you which is which. Then you need a digital scale. The zinc cents weigh 2.5 grams.
Reality is negative or positive. Don't be blind to the sheer numbers that makes this search fruitless. One more may turn up one day. But it's not going to be you or I who finds it. It's like that drunk in a liquor store in Gary, Indiana who buys a Powerball ticket 30 seconds before the machines lock, and wins. I did read that the guy who found the 1st one, was actively searching for it. He felt that a transitional year would be the time to look for a wrong metal error. If a regular amount of copper planchets accidentally were minted, then there would be dozens of these things. And besides the 1982-D SD, there are a few more (all Denver I think) 1 or 2 from the mid and late 80's and one from the 90's. But as has been mentioned here before, if a stray copper planchet was found by a cleaning crew (stuck in a weird part of a machine). You can't take anything out of the mint, so it could have just been tossed into a giant bin of zinc planchets. There may not be any more.