I'm just trying to figure out how I would plate onto a copper work piece, since copper is very reactive to Hydrochloric Acid, Sulfuric acid on the other hand not so much. Is sulfuric acid able to be used for plating solutions? I have just never heard of Gold Sulfate, Palladium Sulfate, Platinum Sulfate, though I have heard of Vanadyl(Vanadium) Sulfate for plating. Do the nobel and other precious metals form sulfates that can be used for plating?
Alternatively the only way to plate something of copper with chlorides would be to neutralize the remaining HCL after the solution has been created, and then extract the chlorides, which, being soluble in water, while simultaneously needing to get the salt out(from the neutralization reaction), might prove challenging. If it's even needed at all. Not sure how salt would effect the plating solution, though, it could act as an electrolyte.