State one relevant observation for each of the following: At the Anode when aqueous copper sulphate solution is electrolysed using copper electrodes.

Explanation

Copper sulphate solution is electrolysed using copper electrodes and the cathode increases in size due to deposition of copper metal, whereas the copper anode gets thin due to loss of copper metal into the solution as `Cu^(2+)` ions.
The electrolytic solution contains following ions
`CuSO_(4)(s)+H_(2)O to Cu^(2+)(aq)+SO_(4)^(2-)(aq)+H^(+)(aq)+OH^(-)(aq)`
At cathode
`Cu^(2+)(aq)+2e^(-) to Cu(s)`
At anode made up of copper
`Cu(s) to Cu^(2+)(aq)+2e^(-)`