my GC3 is copper plated. The feet were scratched and dinged enough that upon bead blasting with very fine media, it was clear that the copper was scratched through to the base metal. I primered them and painted with Valspar copper rattle can paint.
At first I baked them in my garage oven (used for powder coating) - that makes a very durable finish even out of rattle can paint - but it changed the color to an antique bronze look. I repainted them without baking then applied many coats of Krylon clear. They are almost an exact match of the original finish.
I have now painted all the pocket corners and ball box trim with the same Valspar can paint, then they will get cleared with an Automotive Eurathane for better durability. The legs won't get much wear, but the pocket corners will - hence the better clear.
I powder coat for my other hobbies, but could not find a copper - and I am not a fan of the hammer tone bronze/black - I wanted my table to look original, but didn't want to pay for copper plating.
Todd