A 100.g piece of silver (SH= 0.240 J/g C) with an initial..?

Assume that there is no heat loss to the surroundings.

Heat transferred, q = m c ΔT

Density of water = 1.00 g/mL
Mass of the water = (50.0 mL) × (1.00 g/mL) = 50.00 g

Heat loss by the metal = Heat gained by the water
(100 g) × (0.240 J/g°C) × [(80.5 - T) °C] = (50.00 g) × (4.184 J/g°C) × (T - 21.5)
1932 - 24.0T = 209.2T - 4497.8
233.2T = 6429.8
Temperature at equilibrium, T = 27.6°C (to 3 sig. fig.)

Heat transferred from the metal to the water
= (100 g) × (0.240 J/g°C) × [(80.5 - 27.6) °C]
= 1270 J

Here's a 100g piece of silver, sculpted into a Tiki