Complete the following ionic equations in reference to electrolysis and electroplating.
$4 {OH}^{-} \to_+_$

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Solution

Electrode reaction
The oxidation half-reaction occurring at the anode is given in this reaction
Here, four hydroxyl atoms combine together to form a water molecule and an oxygen gas which is liberated at the anode.
$4 {OH}^{-} \to 2 H_{2} O + O_{2}$

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