Final answer:
The ghost's speech in Shakespeare's Hamlet is characterized by a tone of remorse and penitence, depicted through vivid imagery of its suffering and atonement for sins.
Step-by-step explanation:
The tone of the ghost’s speech in the passage from Shakespeare’s Hamlet can best be described as remorseful and penitent. The ghost conveys this tone through the use of vivid imagery that reflects its suffering in the afterlife, having to endure being “doom’d for a certain term to walk the night, and for the day confin'd to fast in fires,” until its sins are purged.
This tone is further emphasized by the ghost’s acknowledgment of the “foul crimes” committed during its life which now require atonement through its ordeal.