[paul.fr]

Paul - have you actually tried this?

I have, Chris.

Placing, i think 10, 2 pence pieces into a cup and then covering them with salt (i forgot the salt bit in the earlier post...oops), then covering them with vinegar. after about one hour you remove the coins which look nice any shiny and replace them with a nail, although this could be any metalic object i suppose.

after another hour you remove the nail/s and they are copper plated....i dont know if this really qualifies as genuine plating, but the nails are "coppered"

***edit***

Sorry i forgot about the salt, maybe this i why i was getting strange looks through my monitor!