The temperature of the copper block is monitored using a digital thermocouple reader. The digital screen displays temperature values to one decimal place, such as $23.4^{\circ }C$. What is the resolution of this temperature reader?

To ensure minimal heat loss to the surroundings during testing, the copper block is wrapped in a lightweight aerogel insulation jacket. The total combined mass of the copper block and the insulation jacket is measured as $0.845kg$. The mass of the copper block alone is $0.750kg$. Calculate the mass of the aerogel insulation jacket.

During the thermal test:

• The electrical energy transferred to the copper block was $11400J$
• The mass of the copper block was $0.750kg$
• The temperature of the block increased by $40.0^{\circ }C$

Calculate the specific heat capacity of the copper alloy from these experimental results. State the correct unit from the following options: $J/kg$, ${J/kg}^{\circ }C$, or ${J/}^{\circ }C$.