Final answer:
The first quarter moon would be visible in the eastern sky at 3 pm, approximately 90 degrees away from the position of the Sun, depending on geographical location and time of year.
Step-by-step explanation:
The first quarter moon is visible in the sky halfway through its cycle of phases, approximately a week after the new moon. At this phase, the moon is 90 degrees away from the Sun in the sky. When you are looking at the sky at 3 pm, the Sun is still up, usually in the west before setting. The first quarter moon would typically be visible in the eastern sky in the afternoon since it has to be 90 degrees away from the Sun. However, the exact location can vary based on your geographical location and the time of year.