While doing electrolysis on some pennies, (Pence?) I noticed a copper coating on my + copper lead?
Is there something special about this? Also, Is this a form of electroplating? I doused some pennies in vinegar for about a week+ and tried this. On a thinner, magnet wire lead, (copper +) it had what I beleive is a dark green copper salt, that burned blue. Can anyone Identify this? Also, I changed the diameter of the lead, to about 1/16 - 1/8 (Copper lead, +) and It seemed like that lead was powder coated with copper. Is there a reason it would not be a copper salt? The other was coated with what I think is Zinc.