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Why dilute copper sulphate with vinegar for electroplating?

what effect does vinegar ⇦in bulk on eBay or Amazon [affil link] have on electroplating [since most experiments ask us to dilute copper(II) sulphate with vinegar?

Charlene
student - Singapore
2005

It's hard to guess what the textbook author may have had in mind, especially when we haven't seen the experiment, but vinegar is a very mild acid and will help the copper stay dissolved and help provide conductivity as the copper sulphate ⇦ on eBay or Amazon [affil link] is diluted.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted can be retained for immediate
answers or long term project help
2005

It would normally be used because it is significantly safer for students to use than sulfuric acid. A plus is that it will form a copper acetate complex and tend to give you a tiny bit more uniform plating in the low current density areas.

James Watts
- Navarre, Florida
2005

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