As a Software Engineering Intern, you should have a lot of freedom to choose what your ideal work-life balance looks like. The culture of Capital One varies a lot by the office location-- for example, the Richmond or Plano campuses might be more lax while offices in New York may be more fast-paced and work-oriented. It also depends on the team you're assigned to. But as an intern, you have a lot of opportunities and not many responsibilities, so it's a perfect place for a student to be. There will also be a ton of fun intern events, so if you want more opportunities to meet the other interns or learn new things, this internship is perfect.
I found that the Capital One Software Engineering Internship takes about that much time per day. Depending on your team, you may find that they come in earlier or later. Different teams also have different habits relating to WFH policies.