To find out how many households a power station can serve, we need to divide the total electricity generated by the power station by the average electricity usage per household.
Total electricity generated by power station = 2.496×10^10 kWh
Average electricity usage per household = 1.04×10^4 kWh
Number of households served = Total electricity generated by power station / Average electricity usage per household
Number of households served = (2.496×10^10 kWh) / (1.04×10^4 kWh)
Number of households served = 2.4×10^6
Therefore, the power station can serve 2.4×10^6 households.