Answer
Please see the work below.
Work Step by Step
There are two half-cells in a galvanic cell. There will be oxidation in one half-cell and it is the anode. The other in which reduction takes place is called the cathode. The two half-cells are connected using a salt bridge. There will be potential difference between these half-cells and hence they provide electricity in the external circuit.
The two half-cells are separated to prevent other chemical reactions that might happen when they combine together.
