I believe the temperature change will be; 3.147 °C
Heat supplied by system is equivalent to the heat gained by aluminium metal.The heat supplied in this case is 52 Joules, thus
Heat energy gained by aluminium = mcΔT, where m is the mass of aluminium in Kg, c is the specific heat capacity of aluminium and ΔT is the change in temperature.
Therefore, 52 = 18.3 × 0.903 × ΔT
52 = 16.5249 ΔT
ΔT = 3.147
Therefore, the temperature change is 3.147 degrees celsius