To find the object: Go to the Preview, and see the button third from the left along the bottom (it has a half-circle arrow on it). Hovering over it should show a Tooltip - Reset view camera position. Click on it, and it offers the option to Center on object or shader. Pick your object, and you should find the camera in front of a bounding box. If it still looks very small, then click on the object and increase its scale. Then, to make sure the camera will actually render what's in the bounding box, you have to click on the button on the far left of the preview (Tooltip: Copy this view to the current render camera) (I admit it is a little involved). THEN, render.