Probably only 1 cent, as the chance it being a chemical change rather than wrong metal is much higher. Several chem lab books have this experiment that produces a silver-ish zinc coating. here is one ~ google
I used to confidently tell people that silver pennies don't exist. Then a Lincoln Cent which was struck onto a silver dime planchet came into the store. I was shamed. I mean, it's still unlikely. But it's worth checking out. A gram scale would probably be your easiest way to check. 2.5 grams for the dime planchet vs 3.1 grams for the regular wheat planchet. Assuming the lack of excessive wear.
