Metal items are gradually plated with copper in vinegar
name: Copper plating metal items electrochemically
Copper Plating Metal Items (with Vinegar or Copper(II) acetate) Electrochemically
Easy Nickel And Copper Electroplating Method
First copper plating experiment Part One
by Karl Denton
copper nail and zinc plated screw in distilled vinegar
How To Copper Plate Metals
Wear lab gloves and eye protection.
Always follow general safety
recommendations. Please note that conducting chemistry
experiments you must comply with the relevant legal procedures in
Cu2+ + 2 e- → Cu
2 H2O - 4 e- → O2 + 4 H+
- Pour about 50 - 100 ml of vinegar into a beaker.
- Connect a copper wire or stripe and a metal item (spoon, nail, key or someone else) to a DC power supply (5V) using wires. Copper should be connected to the positive terminal, and the item - to the negative terminal of the power supply.
- Secure the copper electrode and the metal item in the beaker. Make sure, that the electrodes don't touch.
- After about 15 minutes remove the metal item from the solution. A layer of copper is formed on the metal surface.
Copper dissolves in the solution forming Cu2+ ions under the action of an electric current. Reduction of copper ions occurs on the surface of the metal items. Thus the copper layer is formed on the metal surface.
Vinegar solution becomes blue because of the presence of copper ions.