Final answer:
The question delves into Physics, specific to thermal conduction in materials, requiring the conversion of given values to SI units for calculations related to heat transfer.
Step-by-step explanation:
The question regarding the rectangular steel plate involves concepts from Physics, specifically the topic of thermal conduction. To analyze such a scenario, one must identify the knowns and convert them to the SI units for consistency and ease of calculation. For instance, the thickness (d) of the steel plate would be converted from 0.800 centimeters to meters, resulting in 8.0 x 10-3 m. Similarly, the surface area (A) of the plate is calculated using the formula for the area of a circle with the given diameter, and the thermal conductivity (k) is given in SI units of J/s·m·°C. These known values are pivotal in determining heat transfer through the material, which is crucial for understanding the efficiency of thermal insulation or conduction applications.