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copper plating on top of zinc/ zinc alloys and steel

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emosms:
Hello,

Is there any suitable for home use solution to copper plate on top of zinc alloys?
I tried copper sulfate, but it corrodes the surface of the parts.
Tying actially to refinish a part, it corrodes where the base metal is exposed and I get ulcers on the surface.

Could that solution work?

Copper sulphate 35-40 gms,
Potassium sodium tartrate 180-190 gms,
sodium hydroxide 50-60gms,
20 °C temp.
0,3-1,5 A/dm2

Kind Regards :)

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