a) We can connect the PV modules in series or in parallel, therefore, to achieve V, we must connect 8 such modules in series:
This is not too much because this result lies within allowable voltage range of of the nominal voltage. Higher is better than lower.
The current that such an arrangement can produce is
This is the maximum current. A PV module generates voltage. Depending on the resistance of the load, the current vary between 0 and 2.4 A.
b) When each module conducts 2 A, the power in each module is
The power of all 8 modules is
c) The number of cells in a single module: