If hired here at Salesforce, what portion of your day would you spend coding, and what are the other activities you would perform when not coding?

As with any software engineering job, not all of the day is spent coding. The same is true for working at Salesforce. The reason the interviewer will ask this operational question is to understand how you go about doing your job on a day-to-day basis. Operational questions will ask you about the processes you use to accomplish the tasks required by this position. The best way to answer operational questions is directly and briefly. The interviewer will ask you a follow-up question if they need more information or want to explore the topic in more detail.