Which of the following occurs when a solution of CuSO4 is electrolysed using copper electrodes?
The cathode becomes coated with copper
Both electrodes gain electrons
The blue colour of the solution fades gradually
The anode increases in mass
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Wrong. The answer is C.
Ref: New School Chemistry, Electrolysis- Page 206, 4th paragraph
C JOOR the copper is deposited at the cathode and not coated and the blue colour of the solution fades away
hmmm let's go and confirm from the author of all this confusing
chemistry text 
here i come
they are actually correct. try to understand this
both elevtrodes are coppee. this means that as cu ion is beimg reduced in the solution and deposited as cu metal on the xathode (negative electode), more ions of cu are also being added to the solution from the anode (positive electrode) thereby maintaining constant cu ion concentration and COLOUR while the ANODE REDUCES. hope we all get now!
