Final answer:
Without additional information on the Earth's rotation or location coordinates, it is not possible to accurately calculate the time difference for sunrise between passengers at 8 km altitude and people on the ground.
Step-by-step explanation:
The question involves calculating the time difference between passengers on an airplane at a height of 8 km seeing the sunrise and people on the ground experiencing the same. To determine this, one would typically use the Earth's curvature and its effect on the line of sight. However, the information provided does not readily give us a formula to calculate this time difference. Therefore, without additional context on the Earth's rotation or the position coordinates, it is not possible to provide an answer.