Tama ang ilan sa inyo, I used to have electroplating business in 1997 and I stop operation in 2000. The reasons, masyado kasi matrabaho at risky sa health. Kahit hindi ako ang nagwo-work dahil me tao ako pero yung fumes ay ayaw ko. Imagine you are dealing with the most poisonous chemicals on earth. Hindi talaga kakapit ang anomang metal oxide kapag marumi. You have to smooth out surfaces, sanding, grinding and buffing. Pagkatapos pakukuluan mo pa sa cleaning solutions.
Plating with copper uses low current while in gold is higher.